Industries we serve

K&J Group GmbH supports industrial companies in the areas of quality assurance, non-destructive testing, supplier monitoring, and technical project support. We specialize in complex components, international supply chains, and safety-critical applications.

Mechanical Engineering
We assist mechanical engineering companies with supplier monitoring, production controls, acceptance testing, and technical quality assurance for individual parts, assemblies, and complete systems.
Typical services:
Inspection, expediting, NDT, incoming inspection, supplier evaluation, FAT.

Energy & Power Plants
We offer technical inspection and monitoring services throughout the supply chain for energy systems, overhauls, and power plant components.
Typical components:
Welded structures, pressure components, castings, forgings, piping, turbine and plant components.

Aviation & Aerospace
We provide support for quality-related testing and documentation requirements for sophisticated aviation and aerospace components.
Focus:
EN 9100, EN 4179, ISO 9712, NDT processes, NADCAP, documentation, and supplier quality.

Rail Vehicles & Drive Technology
We provide quality assurance and technical supplier support for manufacturers and suppliers in the rail, transmission, drive technology, and heavy-duty components sectors.
Typical services:
Component testing, supplier audits, production monitoring, acceptance testing, document review.

Guss- und Schmiedeteile
Wir unterstützen Kunden bei der Prüfung, Bewertung und Verbesserung von Guss- und Schmiedeteilen – von der Oberflächenbewertung bis zur zerstörungsfreien Prüfung.
Fokus:
VT, PT, MT, UT, RT, Oberflächenbewertung, NCR-Management, 8D-Unterstützung.

Castings and Forgings
We assist customers with the inspection, evaluation, and improvement of castings and forgings—from surface evaluation to non-destructive testing.
Focus:
VT, PT, MT, UT, RT, surface evaluation, NCR management, 8D support.

International Supply Chains
We support companies that work with suppliers both domestically and internationally and require independent on-site technical monitoring.
Focus:
Global supplier visits, production monitoring, expediting, quality issues, technical communication.

Plant Engineering & Custom Machine Building
For complex projects in plant engineering and custom machine building, we provide technical project support, interim inspections, and final acceptance testing at the supplier’s site.
Typical services:
FAT, project acceptance testing, milestone inspections, document reviews, technical reports.